Camco Stack Jack Stands are designed to help secure and level RV positioning and stability. Made from cast aluminum, each Jack Stand can support up to 6, 000 lbs. The Jack Stands extend from 11" up to 17" and are easy to use. Made with a heavy-duty, non-corrosive cast aluminum base. Permanent handle stays with the jack so it won't be lost. Set of 2. Each stand can support up to 6, 000 lbs. Extends from 11"" up to 17"" high Permanent handle stays with the jack | Camco Stack Jacks Stabilizing Trailer Jack Stands, Set of 2